diff --git a/be/src/agent/task_worker_pool.cpp b/be/src/agent/task_worker_pool.cpp
index bfa1b2f67b..0867cb3c25 100644
--- a/be/src/agent/task_worker_pool.cpp
+++ b/be/src/agent/task_worker_pool.cpp
@@ -717,8 +717,8 @@ void TaskWorkerPool::_publish_version_worker_thread_callback() {
                     _tasks.push_back(agent_task_req);
                     _worker_thread_condition_variable.notify_one();
                 }
-                LOG(INFO) << "wait for previous publish version task to be done"
-                          << "transaction_id: " << publish_version_req.transaction_id;
+                LOG_EVERY_SECOND(INFO) << "wait for previous publish version task to be done"
+                                       << "transaction_id: " << publish_version_req.transaction_id;
                 break;
             } else {
                 LOG_WARNING("failed to publish version")
diff --git a/be/src/olap/tablet.cpp b/be/src/olap/tablet.cpp
index 25b1c18b1e..cfd4a0ed72 100644
--- a/be/src/olap/tablet.cpp
+++ b/be/src/olap/tablet.cpp
@@ -2723,13 +2723,16 @@ Status Tablet::calc_delete_bitmap(RowsetSharedPtr rowset,
                                                         &loc);
                     if (st.ok()) {
                         delete_bitmap->add({rowset_id, loc.segment_id, 0}, loc.row_id);
-                        ++row_id;
-                        continue;
                     } else if (st.is<ALREADY_EXIST>()) {
                         delete_bitmap->add({rowset_id, seg->id(), 0}, row_id);
-                        ++row_id;
-                        continue;
+                    } else if (!st.is_not_found()) {
+                        // some unexpected error
+                        LOG(WARNING) << "some unexpected error happen while looking up keys "
+                                     << "in pre segments: " << st;
+                        return st;
                     }
+                    ++row_id;
+                    continue;
                 }
                 // same row in segments should be filtered
                 if (delete_bitmap->contains({rowset_id, seg->id(), 0}, row_id)) {